Morticious Thrind (a Commodore 64 WordPress Theme)

All 8 Bitz!

Japan FPGA Rules!!!

Aquí os dejo una lista de enlaces de proyectos que usan las FPGA para recrear viejas máquinas (especialmente las recreativas de antaño). Lástima del idioma!

• Donkey Kong FPGA  (Spartan III Starter board)
• Pengo
• Galaxian y Mooncresta
• Galaxian (verilog 100%)
• PacMan
• Spartan III and retroarcades
• Miscelánea
• FPGA z80 projects

Gracias uC Hobby (Thanks!)

Hoy, al volver a casa, he encontrado un perqueño paquete en el buzón. Era el módulo LCD que ucHobby regalaba (sí, regalaba!!) a quienes promocionaban su página. Lo hice, me puso en contacto con ellos y, después de unas semanas, tal como prometieron, tengo el módulo, fantástico módulo de 320+240píxels b/w conmigo.

La verdad es que el módulo es perfecto para el ZXinOne, aunque sea en blanco y negro. Es igual. De pequeño me acostumbré tanto a jugar con él a través de un viejo televisor de blanco y negro que, en realidad, no me importaría jugar con él a través de esta pequeña ventana.

En definitiva, gracias uC Hobby por este estupendo regalo! Thanks uCHobby!

Recursos para el ZXinOne

ZXinOne

Espero que sirva para todos aquellos que, como uno que escribe estas líneas, le apasionaría ver realizado el proyecto ZXinOne…

ZXGate
This projects original intention was to make an updated version of Bodo Wenzels ZX97 ZX81 clone. This has been done, but not according to the original plan which was to use a real Z80, separate memory chips and the ZX97 ULA replacement. Instead the entire ZX81 was implemented in one FPGA! Since then three more systems have also been implemented.
ZX Spectrum in an FPGA
Actually it is still work in progress. The project is based on the TV80 code – z80 in Verilog, allegedly cycle accurate. At least I didn’t notice anything wrong so far.
ZX Spectrum in FPGA

Spartan 3 Starter Kit Board resources

http://www.rose-hulman.edu/~doering/PLD_Oasis/digilent-sp3.htm
http://www.xilinx.com/products/boards/DO-SPAR3-DK/reference_designs.htm
Apple ][ en la FPGA Starter Kit Board!

Ensambladores/Compiladores

Pasmo, ensamblador cruzado Z80 portable

Artículos técnicos/Documentación técnica de interés

Intro to CPLDs..
Getting started with programmable logic
Parallel 3 Programming Cable Schematic\\Double Action Pseudo Disk
Programming the CompactFlash card or Memory Stick

PAL TV Signals

PAL TV timing and voltage information
How to generate video signals in software using PIC

VHDL

Tutoriales VHDL
We developed the following tutorial based on the philosophy that the beginning student need not understand the details of VHDL – instead, they should be able to modify examples to build the desired basic circuits.
Varios VHDL
VHDL Source Code for Simple 8-bit CPU
A VHDL Tutorial
Listas de componentes en VHDL
Homebrew CPU in VHDL
High performance FPGA versions of popular microcontrollers.

FPGA y proyectos Retro-Games

RetroMicro Projects
I’m am absolutely fascinated with retro computers and games. In many cases they are simple enough for one person to fully understand, yet complex enough to enjoy studying and learning how they really worked. They are usually designed around limited resource constraints that require the hardware engineer to really know their stuff.
FPGA Arcade
This site is about recreating gaming hardware from the past in modern programmable devices, known as FPGAs. Please see the FAQ page for a more detailed discussion and commonly asked questions.
Donkey Kong y otros (en japonés)

Proyectos ZX / FPGA o similares

Minimig
This board contains the FPGA, 1MByte SRAM, power regulators, PS/2 interface and lots of leds and swithches. To this i’ve added 3 boards of my own to get a complete sytem. On top you can see the processor board. Next to the LED displays is a small silvery board with the clock circuitry and to the left is a board with the MMC flashcard interface, joystick interface, videodac/connector and audiodac/connector.
x1 clone
Donkey Kong
C-One computer
The Commodore One computer started off as a 2002 enhanced adaptation of the Commodore 64 -the most sold of any computer model (Guiness book of World Records) While retaining almost all of the original’s capabilities the Commodore One adds modern features, interfacing and capabilities. The C-One fills a gap in the hobbyist computer market.

Homebrew Z80 computers

Antique computer – The Sinclair ZX81

• Objetivos: Construir un ZX81

Z80 Projects

• Proyectos placas Z80

Cómo construir un Jupiter Ace!
Construction of a Z80-based retro home computer system, using discrete logic and microcontrollers..
The Great Z80 Computer Project
Programmable Z80 Microcomputer

I am 8bit

No me gusta especialmente este artista, pero su temática tiene que ver con lo que habitualmente se hace referencia en este espacio y, qué narices, tiene una exposición estelar en Los Ángeles, EEUU.

Free Graphic LCD

Include a link to uC Hobby on your site or blog and I will send you a graphic LCD module. Your site must have content similar to uC Hobby or be relevant to the same topics of interest and I reserve the right to decide who receives a module. There is a limited number of LCD modules and I will give them away on a first come first serve basis. If you are unsure and want a confirmation before you do the link, just request a review. If your site is OK, I will reserve you a module for one week. The idea here is to get some inbound links to my site and to find other hobbyist who may have a use for the modules. The offer is retroactive in case you have already linked to uC Hobby. I don’t sell these modules and I am not collecting email or home addresses so don’t worry about that. I will update this post when they are all gone.

I will pay the shipping cost for normal mail in the US only. Sorry about the US restriction but I don’t want to deal with overseas shipping. I don’t warrantee these units and I can not accept any liability for any reason. The modules are unused and work as far as I know, I have not tested them. Send an email with a link to the site and the shipping address to info@uchobby.com requesting the LCD module.

I have about 20 modules that are graphic 320×240 B/W with EL backlight. They do not have a built in controller so each scan line has to be output from your microcontroller or you can get an LCD controller. You should be able to make a nice graphics display using a fast ARM7 with at least 10K of RAM. Let me know about your project, I will reserve a second model and send it to you when you post about the project.

They have a 14 pin flex cable and a pad set for a 14 pin connector with the same connections. You will probably want to remove the flex cable and use the 0.1″ connector on the side. The display is small and thin as you can see in the pictures with the standard US quarter. Get the datasheet here.

This is not the graphic LCD seen in my prior post. I am playing with a different low cost graphic LCD that does include a controller. I will post some details on this project soon.

14 de Abril.

 El 14 de abril de 1931, España tuvo una oportunidad. La proclamación de la II República Española encarnó el sueño de un país capaz de ser mejor que sí mismo, y reunió en un solo esfuerzo a todos los españoles que aspiraban a un porvenir de democracia y de modernidad, de libertad y de justicia, de educación y de progreso, de igualdad y de derechos universales para todos sus conciudadanos. Hoy, setenta y cinco años después, los firmantes de este manifiesto evocamos aquel espíritu con orgullo, con modestia y con gratitud, y reivindicamos como propios los valores del republicanismo español, que siguen vigentes como símbolos de un país mejor, más libre y más justo. (Leer más)

Pic16f84 TV asm

Más de una persona me ha pedido el código que genera la señal de video simple (una barra vertical) con el pic16f84. Venga, que no se diga…

picTV_03.asm 

Insoladora de leds UV (II)

Droky, de RadikalDesign, nos ofrece una estupenda respuesta a la pregunta “¿cómo puedo hacer la insoladora si previamente no dispongo de una insoladora para crear la pcb?“

Gracias Droky y a Xocas por el diseño (corregido! )!